$tags Applicable tags, see ChangeTags. * @param array $flags See the self::FLAG_XXX constants. * @param string|ConvertibleTimestamp|false $timestamp */ public function __construct( string $cause, ?ExistingPageRecord $pageRecordBefore, ?ExistingPageRecord $pageRecordAfter, UserIdentity $performer, array $tags = [], array $flags = [], $timestamp = false ) { parent::__construct( $cause, $pageRecordAfter ? $pageRecordAfter->getId() : $pageRecordBefore->getId(), $performer, $tags, $flags, $timestamp ); $this->declareEventType( self::TYPE ); Assert::parameter( $pageRecordBefore || $pageRecordAfter, '$pageRecordBefore and $pageRecordAfter', 'must not both be null' ); $this->pageRecordBefore = $pageRecordBefore; $this->pageRecordAfter = $pageRecordAfter; } /** * Returns a PageRecord representing the state of the page before the change, * or null if the page did not exist before. */ public function getPageRecordBefore(): ?ExistingPageRecord { return $this->pageRecordBefore; } /** * Returns a PageRecord representing the state of the page after the change, * or null if the page no longer exists after. * * Note that the PageRecord returned by this method may be the same as the * one returned by getPageRecordBefore(). This may be the case for * reconciliation events, but also for events that represent changes that * are not reflected in the PageRecord. */ public function getPageRecordAfter(): ?ExistingPageRecord { return $this->pageRecordAfter; } } // @deprecated temporary alias, remove before 1.45 release class_alias( PageRecordChangedEvent::class, 'MediaWiki\Page\Event\PageStateEvent' );